The intersection of genetic engineering and advanced intimate companion design exists purely in the realm of speculative fiction, representing a conceptual leap that blurs the lines between artificial life and manufactured biological entities. Currently, companion devices are purely mechanical and digital constructs; they are not biological and therefore not subject to genetic manipulation.
However, if one were to imagine a future where synthetic biology advanced to the point of creating organic, living tissues that could be engineered and integrated into companion forms, then genetic engineering might theoretically play a role. This could involve engineering cells to produce lifelike skin with self-repairing properties, or creating biologically inspired components that mimic human physiology with unprecedented realism. Such a future would raise profound ethical questions about the nature of life, personhood, and the creation of sentient beings. It moves far beyond the current technological capabilities and ethical frameworks of companion design. For the foreseeable future, companion design will continue to rely on advanced materials science, robotics, and artificial intelligence, remaining firmly within the domain of engineered artifacts rather than genetically manipulated organisms.